You should be fishing river clams, put in the pot to raise, no food is easy to starve to death, usually live less than a week. It's best to put a few water plants in it to keep it alive.

Corresponding knowledge:

The shell of the common Chinese river clam is about 40 millimeters long and 30 millimeters high. The shell is thick and hard, slightly triangular in shape, with slightly equal sides. The surface of the shell is yellowish green, blackish brown and black, glossy, and the inner surface of the shell is mauve, bright purple and porcelain-like glossy. It inhabits rivers and lakes. It can be eaten, and is also the bait for fish and birds, and can be used as farmland fertilizer.

River clams can reach sexual maturity in three months and can reproduce throughout the year. The gonadal period is from May to August, and the reproductive period is from May to June. The life span of a river clam is about five years, and the best time to harvest and utilize them is between the ages of one and two. The best period for harvesting and utilizing clams is from the first to second year of age. Shells used for handicrafts should be more than 3 years old. River corbicula inhabits rivers, lakes, ditches, ponds and estuaries in brackish and freshwater waters where the substrate is mostly sand, sandy mud or mud. In the bottom of the water camp cave life, young corbicula habitat depth of 10-20 mm, large corbicula can dive 20-200 mm, to 20-50 mm distribution of the most. They feed on plankton (e.g. diatoms, green algae, eye worms, rotifers, etc.) filtered through the gills, which is a form of passive feeding. River clams are dioecious, but hermaphroditic individuals have also been found. River clams in the Fujian area reproduce at their peak from May to August each year, when large quantities of white slime-like material appear at the bottom of the riverbed. When the river corbicula larvae planktonic life is over, that is sunk to the bottom of the water camp benthic life of 15-30 days, and then after about 1 month to grow into 2 millimeters of small corbicula, 3 months to 10 millimeters, the corbicula's life expectancy of about 5 years.